A medical institution in the United States once conducted a controlled experiment. They randomly selected 500 obese children and 500 normal-weight children as two experimental groups. After several years of follow-up investigation, it is found that the academic performance and examination pass rate of obese children are completely significantly lower than those of normal children. Why is this? Because the aerobic capacity of obese children is reduced, the cardiopulmonary function is not fully developed, and the oxygen supply to the brain is relatively insufficient. Due to lack of oxygen in the brain, synaptic function decreases and thinking speed slows down, resulting in mental retardation.

Rumors:

Every parent wants their children to have normal or even extraordinary intelligence, but it has been reported recently that "the IQ of children is inversely proportional to their weight", which has caused widespread spread. Is that really the case? To understand this problem, we must first know what IQ is.

What is IQ related to? Intelligence Quotient (IQ) is an indicator of personal intelligence test scores and the scores of peers, and it is also a standard to measure personal intelligence. The difference in intelligence can be explained to some extent from the perspective of brain biology, and it is also related to the acquired environment and other factors. According to the survey results, about 70% ~ 80% of intelligence differences are due to genetic factors, and 20% ~ 30% of intelligence differences are caused by different environmental influences.

Is a child's IQ really inversely proportional to his weight? First of all, academic performance reflects the level of IQ to a certain extent, but it is not the evaluation standard of IQ. Evaluating IQ requires a scientific intelligence scale, such as Wechsler Intelligence Scale. So the evaluation standard of this medical institution is unscientific. Secondly, obesity does increase the risk of many diseases, but there is no evidence that obesity can lead to low IQ of children.

To sum up, medical institutions are not scientific in both testing methods and interpretation of results. Therefore, you don't need to believe the conclusion of the experiment, that is, there is no scientific and reliable evidence to prove that the IQ of a child is inversely proportional to his weight.

"IQ is inversely proportional to weight" is a rumor, but obesity does affect the health of teenagers. Obesity refers to a certain degree of obvious overweight and thick fat layer, which is a state caused by excessive accumulation of fat, especially triglycerides in the body. When children gain weight, their risk of some diseases will also increase. Related studies have proved that obesity will have a negative impact on human heart and lung function and increase the risk of diseases such as hypertension, coronary heart disease, stroke and metabolic disorder.

Live a healthy life and balance your weight. Although there is no evidence that IQ is inversely proportional to weight, obesity does cause many diseases. For obese children, you can try the following fat-reducing methods.

"Reduce fat": You can do long-term low-intensity aerobic exercise 4-5 times a week, such as jogging, cycling and swimming (40-60 minutes). Combined with resistance exercise or high-intensity interval training for about 30 minutes each time, it is better to arrange a variety of combined exercises according to personal time. It is not advisable to exercise in only one way, but to choose more exercise methods with full participation.

"Reasonable nutrition": On the basis of controlling the total intake, pay attention to appropriately reducing the intake of oil and fat, put an end to high-calorie foods such as greasy food and fried food, properly supplement high-quality protein such as fish, shrimp and beef, eat enough vegetables and fruits every day, and replenish water several times during exercise.

Rumor expert: Xin Li, member of the Youth Committee of the National Health Literacy Promotion Branch of China Medical and Health Culture Association;

Wu Yibo, Executive Deputy Director of Youth Committee of National Health Literacy Promotion Branch of China Medical and Health Culture Association.

Evaluation expert: Zhang, professor, doctor of medicine, doctoral supervisor of School of Health Management, Southern Medical University.

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